It seems that (at least up to January 2018) the market for (relatively expensive) pro apps on iPad is just too small.
If this new editor isn't free out of the gate, I am doubtful I'll even try it. I love the stuff of theirs that I own, but I'm not sure I'm willing to gamble on their apps any longer. At least the Mac versions tend to have free trials.
In the age of iCloud, Dropbox, and 200 other services and alternative ways to move stuff, why would one want to use a FTP client (like the Transmit above) on the iPad?
The market for FTP clients is small enough on the desktop...
(Heck, I'm a developer, I have a Transmit license since 2006 or so, I work with dozens of remote machines, and seldom ever use it. It's either sftp on the command line, or something like an Ansible wrapper etc).
Not the kind of mass market app the general iPad users would buy en masse.
The point is that convenient file transfer is a long solved problem with nice foss tools that are never going to stop working because of consumer market shifts.
Nobody is "de-prioritizing the line".
They also have ads about how you can load a eSIM on your Apple Watch and make calls without an iPhone. But they aren't deprioritizing the iPhone any day soon...
Really? If the non-walled garden of Linux is so wonderful, what's your problem? Other people shouldn't write the software they like for the platforms they enjoy?
I like to be able to depend on a software with commercial ties, that doesn't change when some community gets bored and has different whims (e.g. "let's redefine everything people know about Gnome 2", or "let's write the n-th audio framework").
And that also attracts major commercial packages like the Creative Suite, DAWs, VSTs, etc -- stuff which I depend on, and with no real match on FOSS world.
Or do they perhaps think: "I can build a viable business on MacOS so that's where I'll invest my time and energy.".
Applications should use the native GUI APIs for the OS they are running on, native GUI APIs are not there for shits and giggles, they provide actual functionality and not using them is a waste of resources. Linux having the desktop equivalent of ADHD is an example to avoid, not to mimic.
It would seem a better investment to make the go to IDE-y thing on iPad Pro.